liugddx commented on code in PR #30667:
URL: https://github.com/apache/doris/pull/30667#discussion_r1477187443
##########
be/src/vec/functions/function_string.h:
##########
@@ -2740,6 +2741,51 @@ class FunctionStringParseUrl : public IFunction {
}
};
+class FunctionUrlDecode : public IFunction {
+public:
+ static constexpr auto name = "url_decode";
+ static FunctionPtr create() { return
std::make_shared<FunctionUrlDecode>(); }
+ String get_name() const override { return name; }
+ size_t get_number_of_arguments() const override { return 1; }
+ bool is_variadic() const override { return false; }
+
+ DataTypePtr get_return_type_impl(const DataTypes& arguments) const
override {
+ return std::make_shared<DataTypeString>();
+ }
+
+ Status execute_impl(FunctionContext* context, Block& block,
+
+ const ColumnNumbers& arguments, size_t result,
+ size_t input_rows_count) const override {
+ auto res = ColumnString::create();
+ auto& res_offsets = res->get_offsets();
+ auto& res_chars = res->get_chars();
+ res_offsets.resize(input_rows_count);
+
+ ColumnPtr argument_column =
+
block.get_by_position(arguments[0]).column->convert_to_full_column_if_const();
+ const auto* url_col =
check_and_get_column<ColumnString>(argument_column.get());
+
+ if (!url_col) {
+ return Status::InternalError("Not supported input argument type");
+ }
+
+ for (size_t i = 0; i < input_rows_count; ++i) {
+ auto source = url_col->get_data_at(i);
+ StringRef url_val(const_cast<char*>(source.data), source.size);
+
+ std::string decoded_url;
Review Comment:
> reuse the string mem
Done.
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